Sprinkler Side Frame Coupling Device With U-Shaped Locking Pins

The coupling means is divided into multiple locking pins distributed at different positions (both sides of the side frame) rather than a single elastic member. Each locking pin independently secures the coupling between side frame and support frame, so if one fails or escapes, others maintain stability. This segmentation resolves the contradiction by providing both ease of mounting (simple pin insertion) and reliability (multiple independent locking points).

The locking pins are designed with preliminary positioning features that guide them into the locking steps before final engagement. The coupling members have predetermined engagement paths that ensure the locking pins are correctly positioned before external forces are applied, preventing escape under load while maintaining easy installation through self-alignment.

The screw fastening operation is extracted and replaced by a simple pin insertion mechanism. The locking pins engage with locking steps through a straightforward drop-in or slide-in action, eliminating the need for screwdrivers, torque control, and multiple fastening operations. This extraction maintains reliability through positive mechanical engagement while dramatically improving installation efficiency.

The coupling members are designed to be self-aligning and self-locating, where the locking pins automatically find their engagement position with the locking steps without requiring precise manual positioning or additional fastening tools. The structure itself provides the guiding and securing functions, making the installation process rapid and tool-free while ensuring reliable coupling.